London’s Piccadilly Circus falls silent. April 2020.
Exaggerating how much lockdown improved air quality could allow us to underestimate the scale of the air pollution problem.
Air pollution exposure during mid to early life may be more important to developing Alzheimer’s disease than doctors realized.
Cecilie Arcurs via Getty Images
The tiny air pollutants known as PM2.5, emitted by vehicles, factories and power plants, aren’t just a hazard for lungs. A study finds more brain shrinkage in older women exposed to pollution.
Sampling wildfire smoke sometimes means sticking a tube out the window of an airplane.
Brett Palm/University of Washington
Thousands of chemical compounds in wildfire smoke are interacting with each other and sunlight as the smoke travels. For people downwind, it can become more toxic over time.
Protecting forests means protecting a rich biodiversity of plants, animals and the livelihoods of many people.
Firefighters dousing the fire at the Engen oil refinery in Durban, South Africa, in December 2020.
The geographic setting of hazardous industrial sites in residential areas during apartheid hasn't transformed since democracy.
Black exhaust fumes from lorry envelope a motorcyclist and his passenger on a busy road in the Kenyan capital, Nairobi.
Studies demonstrate that vehicular emissions are a huge pollution source in Nairobi.
President-elect Joe Biden opposes proposals to allow uranium mining around the Grand Canyon, which the Trump administration supports.
Michael Quinn, NPS/Flickr
The Trump administration has used executive orders, deregulation and delays to reduce environmental regulation. Biden administration officials will use many of the same tools to undo their work.
Smoke from the Black Summer fires likely caused more than 400 deaths. A national set of air quality categories is long overdue.
By the end of October, more than 228,000 Americans who got COVID-19 had died.
Joe Raedle/Getty Images
Air pollution can weaken people's respiratory, immune and cardiovascular systems, leaving them more vulnerable when they get COVID-19.
Monkey Business Images/Shutterstock
School streets close roads to motor traffic when children arrive at and leave school.
Some atmospheric pollutants actually help cool the planet, but the sudden shutdown of heavy industry threatened to purge them.
In the US, the average time spent waiting in fast food drive-throughs has risen by half a minute during the pandemic.
Staff and customers with underlying health conditions are likely to be most at risk at drive-through windows.
By opening data, monitoring and reporting on air quality can be complemented by data from various sources to create more localised and relevant decision-support solutions.
Wildfire smoke turned the San Francisco sky orange in the middle of the day in early September.
Ray Chavez/Medianews Group/The Mercury News via Getty Images
To understand the risks of wildfire smoke, it helps to understand the chemicals people are breathing.
Irish trade with the EU contributes an additional 34 tonnes of toxic nitrogen oxides to air in the UK each year.
Wildfire smoke fills the San Francisco skyline on Sept. 9, 2020.
(AP Photo/Eric Risberg)
Coping with intense and prolonged wildfire smoke is difficult, both physically and mentally. Smoke is an environment hazard to be respected, not a personal challenge to be overcome.
AirQo monitoring system on a ‘boda boda’.
Kampala, like many other cities in sub-Saharan Africa, has a critical data gap on the scale and magnitude of air pollution.
Government action is needed to cut car dependency.
The health impact of wildfire exposure depends in part on the fire itself and how much smoke a person breathes in, how often and for how long.
AP Photos/Noah Berger
Wildfires blanketing several Western cities are creating hazardous health conditions. Don't count on cloth masks to protect your lungs.
New research found a significantly higher risk of preterm births near gas flaring in Texas, particularly among Latinas.
Spencer Platt/Getty Images
A study shows that low-income communities and communities of color are bearing the brunt of the energy industry's pollution in the region. The risks also extend to the unborn.